{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55991",
    "entityType": "User",
    "nonce": "0x2a7c872bb66fb24fcf28c1b767f23f66e24b77dd5ef848396a2083645eb60f1a",
    "signature": "0xd6aac6ad88d17d85338fa668ed83288fad83efe80449f34c9e0439ca5adea18c113ad7b36b966c598b0b69985b093411af2f40167586b5fcaeb1dd8d8c91e30b1c",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}