{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x212f96317145b20e6d02207cf9cf2468c3409948087bae94e4bcc96ca6a99fc7",
    "signature": "0x8c62a400c7373c24baa1c65830295e5877dfd631f3bce67ed365bac6e07ac12f4d66a3c0412c5bb7b89c1a91eec93acaecc5b2e0b8e50e4f205aaf385dc644431c",
    "signer": "0x4a1546e67923Bb92adb43aD2fFFA6b925f814746",
    "userId": "970267617"
  }
}