{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377694",
    "entityType": "User",
    "nonce": "0x5593bbc54a4c4aa01c2575356b805b8984d58e0727d5c3b28cdceae8c444e26f",
    "signature": "0xcbdc87124dc3f58610d65c3c6f60897f2f712e19fce31c50957b0905f7494d9f15791084f96294c9e9dadb6d3792ea2bfe7da802e2db5bd23b1f62633edb37f01c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}