{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225496",
    "entityType": "User",
    "nonce": "0xf5ec5abb940f4e9918a689c703db1d2e37db7bc91d2a559c52312ed79efc1d7b",
    "signature": "0x9b0565171bc08790ccd0ad1c243ce203204b66a17228e0e231853513f5e30a3e0568eb57c92ef1505b8e1e592af9cac99ef4e243eedb8e2690f4b57776c2cb6e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}