{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "629135238",
    "entityType": "User",
    "nonce": "0xce75e465154e62a0bc6a79cec8296221573ff7e69375abc930e317367c0268b1",
    "signature": "0xa044a7f86a9896efd22af4133796f9d704e774cfd5ce41a21a2f79255b20d8b37f15ab5cc5e9c674cbd2e52e69c4afcb7276f3b46d6d37971c5ddeb9d05452a21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}