{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349989",
    "entityType": "User",
    "nonce": "0x51ac4d36a44b26ce761c7fcf6af803eedcef4bdce5dcf07f0d09b19992aecedd",
    "signature": "0x0c2f1309302d25e7d7b009c16decf69b55b12097bf3f21705eb549f7a997eb441d5f9a0fd4600ecfc7f4d8d4906665f4530e34c078ea550c26ad7b3d0205c2fa1c",
    "signer": "0x7b0673f85be6B6f5d7A3CA46d9b1F6DBe3D5F1F9",
    "userId": "310162214"
  }
}