{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "686642087",
    "entityType": "User",
    "nonce": "0x3240c459741f548f15cb223d83affbbf556724aeaa12d8886a323e8fb4ffbda1",
    "signature": "0x9081bdd8a43846334cc1c44237611e93005d1f961768e77b0cfc9848db8ba1333e8502a9d50ab8de1fdcfbc07ead55675e23de06a68f2ec0273aa1b85c77d4081b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}