{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x46d8616a436ac83ba0ccd4dd1adbd58e5520fb3fcfbcc50e451500dfa8d444ba",
    "signature": "0x5b38e36f4cca385532b5b4597eddc48014818ccc170511b89255c7ca1416ada97ff1005e2ec4fe44bd47b5a707c1b62a7cf9c6af6ce1653ce72f5b4f90b86f1b1b",
    "signer": "0xbF4b0f08cE2d464Eb74055fd0f160BfAF96E2787",
    "userId": "101750920"
  }
}