{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372066",
    "entityType": "User",
    "nonce": "0x526999275b6200a00389fa31cb1836dafd472e64e457f5441a5717ce4bbb041e",
    "signature": "0x00bf15091e9d7b2cbc8d6b15e631fa2840a90bca7c26d8f2efae7db7df698e6f7a6bf12979e066a9b4cfdaa66ed606efc6f89f3321f7b91e12e24b4d173894f01c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}