{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844489168",
    "entityType": "User",
    "nonce": "0xdfda0fb514e760ff5b3a7b26e2f925ece61640ecf2ac5e19d63f54179d2e3565",
    "signature": "0xcd7ee138d0481394b05beb4989d5b5ec419c7bafd983d9a3e3893ad0e1812da23a169413ca460f99ff35bf42387b12279fe4fffd2ee3da3f84684c07f270e7ea1c",
    "signer": "0x9Ebaa539cfe874f2a12f954d5f135d41C75Eac9A",
    "userId": "872121325"
  }
}