{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1470920",
    "entityType": "User",
    "nonce": "0x91f749ad609a40aa48022c5a8c186a25cca47a257d30ec12b5dd2eccc0b2f090",
    "signature": "0x054167396e9715496fcfb8326dbbc2cb9731057e553893a0d81ecf07cc969f5c1054bc464a47bec2166f5ac1125cb41069701f8911eeca49900809560dfdc9131c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}