{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159308",
    "entityType": "User",
    "nonce": "0xdac5969b52be67bcc6b2579faa0b133943c2ef196c6973011b32a54c07013734",
    "signature": "0xf21ce43a4a9101e871c03740620889c9fc3ad47c18eb22dd5de54449b2dc19e22f4de29f23075fc2f1d40c3dbff03b447cc30aaaf0a4058c1fd336ba7b51d95a1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}