{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x9eed6e5961306521cd1842e6919aea06f4223ac0a661fdbaeb9fa861ccb5a07a",
    "signature": "0x7b6242a8c8cff0b314ad2786d48b113eca3932eb798f58c8a701e55893b8b171478ca7dc8aa3f91237cbfc3009a6c9040f756e6995fcc764619d36b1a23816b51b",
    "signer": "0x8a278E79c8E7e655B94c3e6798972A44Daa2c6ad",
    "userId": "24098924"
  }
}