{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294973155",
    "entityType": "User",
    "nonce": "0xe66b65930ec0a280bb6f07e38f1597fcc2f8a39e00da7d93a9385c5cb0bbdbd7",
    "signature": "0x3f2d725767aa189264499eef424bf9cedacf3c4fb66ec4946722da23706aa9496139495ec9dc4c58698518cd6da43f56acccf77eea3a2f7c2572ea5a629cebab1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}