{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99310",
    "entityType": "User",
    "nonce": "0xd50519eabbb658aacfb96aaae104dda17dfb3a306ce69a5253a7a4e369945f8f",
    "signature": "0x04c58218d6ec44e754fa2e728eba9b8726a3a008caa3216043b308aa4197d7b801497309106e3125897e86ab662acfb363bc9758ddc014ed372e02348518437f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}