{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302887",
    "entityType": "User",
    "nonce": "0x7d96a7ce8636f6e7b89539fb0f84edd01a8fd21a030a2f5dacab798cb9445cca",
    "signature": "0x62fb7812a70d5fbbb2c155140a41775c11ecdb0de07238f8a038a1eb5904dec020d52d930168d0eb147e7bf26a6bc4e7986f5afafe142e29c0eb6e0298a8072a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}