{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617507449",
    "entityType": "User",
    "nonce": "0x1f3eb2fbadf77265774a5e10ba6bce0b2a462c24417e7968121721c5a444fa44",
    "signature": "0xb1e68f40fcd1b031edb5d15bfaaf509f94b875bdac3a91c444587bc133bfbbf57e46f1bc1dc4c5fb5bb032bea550bc25317b638e5253c562deb148066dd8682b1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}