{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "741933377",
    "entityType": "User",
    "nonce": "0x070800cafc4b2dca67408f2980554881c2a9efc2c0770a543fba6742bccadfb3",
    "signature": "0xb7263671354f6e4d485530e995de42448a3247b0cbde909df91d9672d4f9e36d69d607860a8fba989712718c295c5c33d96c56e282125cc55abba6e8c2fa23891c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}