{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8848c433a908ff0fd1315b8505afc4a59896efbb36dcb09bc9a710ed1b9b0d82",
    "signature": "0x6983680179f5ad2bdf48dabbd9adcf11c1a4289444fc43e118b24a0440e58e4311faea09081a725e9605a9decfc6751e34f4ad211da239e5ca4be35eb858d26c1b",
    "signer": "0xec083a3c9f7e847f8676C7CAF29E433702FB2CA5",
    "userId": "224487861"
  }
}