{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xa43f85f4ad42c281b4f5f66e4b853084b5c45d603753948aafc1b4b057862ab4",
    "signature": "0x05d997b3342b32f1cc4dd25b0d86e6b380b2a22f5b6ad865eeb6bba136db45c470c5622dae205bb1e1753bd1dfcef31918c411af9a5f692a4218d74ac57c542d1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}