{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52e6bbde92267e8ef5a02759c255dc9e6ca09e35e185e3a799bdfe089cad76e9",
    "signature": "0x98026a0d2e7a9fd2197fc38b6f7ae29c484145f447e0f8c4ed306d5be3c9c95d7ffdf860e2daedcb7e15b10d5343d6cafce3063a58fafd621141ba360ddb8b991c",
    "signer": "0x53639592DD4244c9335f99791AC9F8665F25d65d",
    "userId": "609513018"
  }
}