{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134142",
    "entityType": "User",
    "nonce": "0x1111ec10da403ff604529199e7f091b47c708daa9dfdf8f08944b636f65ca86b",
    "signature": "0xab1c09301278d0709a8ceb1eeee43c4717ceed96df8d29d3230a195be900aba82a93797d98de7f6ac4cebf40a6bf94f350a0956c3f02ced696462538222ca3671c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}