{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301493",
    "entityType": "User",
    "nonce": "0x5ae88bf77f5fa5d7685e6d04006ad972e47bb4583117d302fc5e67a9bbf5eb8d",
    "signature": "0x08cda725ac0313326e7a322da4562e24b937d8c96466a45d4c957d7a882e54956ed529728388aad68b80bd09907e1f535011597013d1d1bd39878c777b12459c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}