{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137566093",
    "entityType": "User",
    "nonce": "0xb73b2114e850a9e8d6dcce266a0ed43083688096396e36e5d19d6cdd966e32e4",
    "signature": "0x3821afd0783486f14f571e6a16c2322a5e104b3c3d97d5e50d81425eae1990656b207648fcdf18a6cf7888dccf6bee4fad5cc98ef31bfaadffbf2497ddb167791b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}