{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "625201833",
    "entityType": "User",
    "nonce": "0x70846f33233250c47a2517155c99b40970285cf76f62b1c3d7861dab9f88ed87",
    "signature": "0xd2446c7fdcbb9e07e901cea728fac53ebecb13933effd2eababfba6a425998ef5730bea08ab7a6e7f08b60bf940b950d1661f6602079f31c65f2e097b19e178e1c",
    "signer": "0x5156122E7f53a879786546b3133306b9F7814b9b",
    "userId": "781663071"
  }
}