{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5639",
    "entityType": "User",
    "nonce": "0x2e3b05c2a8ba153658e8ca7c77bf62a53466a79701b0d29fb8b95f2664d8252a",
    "signature": "0xe320b00359068936698e702b9046f67223d82775e2e8f03614edd919077f44cf7a221a70a8a4b5e3dc353040efb0ca449ec75e530febc0f40d162104a5849f621c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}