{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161",
    "entityType": "User",
    "nonce": "0x15637656c4b7a411179c2de659c1368083bd755cfaac472b7413a49b8a20ac38",
    "signature": "0x8a5ad03ffd176c8f588552b14c3a7ed329f174a45f1832e0602183865d8178ff658f7c412ddbb8d12809250ff3f0b8183befca78d41160c2420e449f2129ee5f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}