{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x3cacb7196cab30298eeb6fe11a216ea1d83e7f649443ede1c6e10f62f54f7915",
    "signature": "0xf553346d5468da232405cc237735d31d4be608c1d48de54eef915ee1cbdc34b66a756a6f793c0db7b2220162e99c14aee86305e3ac34d662356b667f8ebf4d391c",
    "signer": "0xE5EA89C11125E62d27764f91F89d06f741D3f34D",
    "userId": "125637459"
  }
}