{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x1a248b1ebe0a3cd18bf14247bfe15835e5849926ab5bc1dd5ed1beba408add6d",
    "signature": "0x81db64108be27007470649ef4112271344649b39762a549609a07d4a06ce0f621e4659eb6771458278efb497289e237a244a0d146501532ee646e47c2e40fa851c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}