{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780125",
    "entityType": "User",
    "nonce": "0xc2d6d6117aa68c5e5c47a2da44d4c404129c6b92bbba29b1259ac89f859981a9",
    "signature": "0xab8199486e6990cbc579b347ec21b8e9feeebe4104da7e50c037b128d13abf2d0ffc7bb94310f2aa5787a14f69dd070450be84c13ef6b38c1ce3757efd8509bb1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}