{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd4fd86e3ac1c653786940ab8c7a31fb85d64457526a2e42293e32933038b0bf4",
    "signature": "0x46a47a8f0a62fad882e0a8887f9c3ad486377ec7b918e9177da46ada5828186768888d0c1250a67cf1273f08c25a3309cd4e2f5a04088999fc1790b03227a2111c",
    "signer": "0x6D083A8068F758f0b1EcF99c1788D7F450A20F5d",
    "userId": "977294736"
  }
}