{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274152",
    "entityType": "User",
    "nonce": "0x543e36150b81be0b181f987533b0aad2692a0db65eabc10feb4aea0f9103ac59",
    "signature": "0x7867c450761b2cd350c8ba11a287d23a9f011bd6959b173302e919181fb8f6da5f28d06e6f0adaac4004659aebb41f98e39d16ecb24af6f21c52f36eb1e9a47d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}