{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312732",
    "entityType": "User",
    "nonce": "0x978c98e95ff6190514d36b94b7d75d1eb1242a5a275ead8a0605aa4f247145f0",
    "signature": "0x4a4f316036be5ce0692ea90c4543feff23133d651ccb001354b3e0699af3063b7223b2da69322551661dc7eaada96141806d924c2798c12502c4a15b59ce822a1b",
    "signer": "0x6fb79570A836Ea8554ad1D745C12769B22f1e4E3",
    "userId": "283478"
  }
}