{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85d47c1eb726a7ec71e1537e2e22843471e1c7618cf7554bf278dabaa3ff16ab",
    "signature": "0x5cf03264ce2d161723f43c1f311efc41377fa465e52affc244908687731f19f842538b8bb5010a7c46ea9c141e1075b0c81c1369197827a0846ebe4eebc5aeb51c",
    "signer": "0xeaaDc07FFf26B9dF9a0Cc8A67863E2cc0E17954A",
    "userId": "123504761"
  }
}