{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9621",
    "entityType": "User",
    "nonce": "0x867be94158d8cfcbc7f6505d15a6f12af1d23a0b7c28fb1c3690e104d0909638",
    "signature": "0xe63a5d8476a25c0209324027bb54bb3dd074201ff9159da2903da0e8f9623e9f196e26160b9b170dc079677f51bbb953b92b1d9e1a9d59cec6056d9b0603b5481b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}