{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0x0e9ebb58b130f86f49acec8af39f20e95a2bae2c512369bb7224f57c963ef5d3",
    "signature": "0x5138bbd79ef3ee7550a5e549d77b8df4b0f1e51cc5bf01544385ac6bb6e7266a5c24170b73f317d18629e8a30e5b40a524e336609e55bd3beee2fc4b0ed424e21c",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}