{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277460613",
    "entityType": "User",
    "nonce": "0x47adff7a55477970efa91f5de005d5942233c1e5b4a3376c1d393494e745f897",
    "signature": "0xce08eb0a2857e9274cb00219ad74941f3e2cac805ee77bec01d9697cb8b6ed7f3a2e2351651ba04fb0a969935ba3d5343291574ca6c444073ac11b8269cf59e71c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}