{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194497",
    "entityType": "User",
    "nonce": "0x5d9e3d23e68abb686f6e6f1daad456d06bdc46d746380aa0eec1ee0c99dd4506",
    "signature": "0x0055ac65e0d41133b5fa8e53f8b00547de1595aa02d1e16b97636a355dff5ea3051d7db1205e9ea8e30ccc0987de4ea0fa44435b8ec30cf1499e6e25930d0d661b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}