{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2fa9322e3f760c8f68f886b2bc83353e452bf9bbfc0150aaffba527549d92ca6",
    "signature": "0x31ee8c41c6ccc7cedbe1d53103ea25122b790a47e4f52e09239867ad074f265137ef459eff3bda707ef40bd64ae47311ca0184bb7eb408ca16d30dcc017b2de41b",
    "signer": "0x33Ad2c811E70A1D027498B1738716c918A3578fb",
    "userId": "856440139"
  }
}