{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x27ab684a6193341b9f087d62b987904dfe61c5a95d00740df7803393799df268",
    "signature": "0x35192ae600fb921a30ecd0fb7f47d08113b998c41fd8c812ad6b464220a1497e288b0208ac2d11a0bc9678c03ce14d746501b1974892f09b7011dac095991f7f1b",
    "signer": "0x8D02f123B845D53Ae9C368bc4bDE0DD5DA151a05",
    "userId": "60820305"
  }
}