{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3b680b27306cf54e4481371ac603bba26971ddc6beac80d43ddc12059540012",
    "signature": "0xff54d827f0acc1a645f8c7da149b544535fc541e171e4d5497883af78d501ae93168dc03a7af6d5af16ee1e1718c6e2333da943f807ed8c5cc98a2e2839a53901c",
    "signer": "0xEdB4Df1e51B3107a48fF6d17937Ef551321a2A7b",
    "userId": "933935152"
  }
}