{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x550f8fe4fbc627302c35526744d2f97c81bbc87124a834175dccddcc314996d1",
    "signature": "0x1ababb849100eba0485e57b3d3ec33c3f2020e2d3d396099670cc4eb19f6d5aa7aebc7132573ffa77e92a0d20669b7037ecfd322a1534be6d78939511549ce4c1c",
    "signer": "0x0bffD2D81009789917D71f317AFaC8aDfDb147d0",
    "userId": "756207441"
  }
}