{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10761",
    "entityType": "User",
    "nonce": "0xa9480d66ac4eef367376fbd12afc10d92ce2e17944dd48fdd52f5ceaaecd9d25",
    "signature": "0x75e9ff7b738e0165eb5e19a6d968c77ebafdb1f5c2e21136137be71959d92ee670ac15eb0f5dc4ef7684173edc4e1ea8b3c285713361de6ec62583302c9d2a761b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}