{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad62b08c18a019487d03cb7307b4f52c146805c67cd1fb00b071f5bc825f8b62",
    "signature": "0x1c8d44c0ffa498cede8e798ce320ffba49bc07f5d2c0e5036280c4ea8b36bb000dd8c97740fd6d8d4608654d7401cbd5a625ee5f3f2158c91c3b55c22e593b921b",
    "signer": "0x52BeffD1D714c5070669ac0f0c3b043Af8ceb0A4",
    "userId": "387855363"
  }
}