{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154693",
    "entityType": "User",
    "nonce": "0x5e8eaa2af4ad46af3b3a325099187ac4cac5fcc8b2a72876dc2048db44469a8e",
    "signature": "0x1aa8d957a67e581aa24da6199530a0a488c2dd3a5128e19e4881f547e59d9857520e9a13150b8b2eb0b0b78086f490c4bcbe90554e67acdc63b6e5d2286840201b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}