{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb910b14fc83dada284413e2c3a557065068cd4a442d42993c5398968f34cbc4e",
    "signature": "0xd726bb1d214b2194365c2b7e461fa111fb79edbb1547becce05d6591bbe8161c22d91d0934c8880cb04d1a95da75c138ef53781c217369c1d41f7b0bce8a93cf1b",
    "signer": "0xf5B026fd607Fee1EdFBaFDaf89Eb7dC8C4D46296",
    "userId": "62481330"
  }
}