{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "751293877",
    "entityType": "User",
    "nonce": "0xae93fe32ca7c6f2f367b0e14d57aa8d812e15e82e5293ed7a005702bd331b8f8",
    "signature": "0x05b3d63f894b5d7f2cf8655966a3e8080ab64b1d9cdb1ef70cde43eaa678c88722192a675be87b7fbf41eafb5dda80a44d0be7d287bb7bc08ced3aebb453c12b1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}